...This is not even close to a "privacy" violation.
When you buy something from a store, they get that information without Amazon in the middle by default (billing address, shipping address, CC info). As a seller, you want this information so you can see who is buying your product and optimize around that, in the same way that as a buyer, you want the most information possible about the product and competing alternatives.
Also, Amazon can and does kick sellers off for abusing data.
Meanwhile, when you buy an iPhone or Macbook, from the moment it gets an internet connection it starts phoning home sending tracking info on you, with no way to disable it. And its absolutely silly to be ok with Apple collecting data but not any other 3d party - from your perspective, Apple is 3d party, and if you trust them with your data despite a history of violations, then you probably don't really care about privacy as much as you think.
When you buy something from a store, they get that information without Amazon in the middle by default (billing address, shipping address, CC info). As a seller, you want this information so you can see who is buying your product and optimize around that, in the same way that as a buyer, you want the most information possible about the product and competing alternatives.
Also, Amazon can and does kick sellers off for abusing data.
Meanwhile, when you buy an iPhone or Macbook, from the moment it gets an internet connection it starts phoning home sending tracking info on you, with no way to disable it. And its absolutely silly to be ok with Apple collecting data but not any other 3d party - from your perspective, Apple is 3d party, and if you trust them with your data despite a history of violations, then you probably don't really care about privacy as much as you think.